Removes usage of signin APIs that return scoped_nsobjects.

ios/chrome/browser/ui/authentication/signin_interaction_controller.mm

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "ios/chrome/browser/ui/authentication/signin_interaction_controller.h"
 
 #include "base/ios/weak_nsobject.h"
 #include "base/logging.h"
 #include "base/mac/scoped_block.h"
 #include "base/mac/scoped_nsobject.h"
@@ skipping 91 matching lines @@
   ios::ChromeIdentityService* identityService =
       ios::GetChromeBrowserProvider()->GetChromeIdentityService();
   if (identity) {
     DCHECK(identityService->IsValidIdentity(identity));
     DCHECK(!signinViewController_);
     [self showSigninViewControllerWithIdentity:identity identityAdded:NO];
   } else if (identityService->HasIdentities()) {
     DCHECK(!signinViewController_);
     [self showSigninViewControllerWithIdentity:nil identityAdded:NO];
   } else {
-    identityInteractionManager_ =
-        identityService->NewChromeIdentityInteractionManager(browserState_,
-                                                             self);
+    identityInteractionManager_.reset(
+        identityService->CreateChromeIdentityInteractionManager(browserState_,
+                                                                self));
     if (!identityInteractionManager_) {
       // Abort sign-in if the ChromeIdentityInteractionManager returned is
       // nil (this can happen when the iOS internal provider is not used).
       [self runCompletionCallbackWithSuccess:NO executeCommand:nil];
       return;
     }
 
     base::WeakNSObject<SigninInteractionController> weakSelf(self);
     [identityInteractionManager_
         addAccountWithCompletion:^(ChromeIdentity* identity, NSError* error) {
@@ skipping 22 matching lines @@
     //
     // Simply use the the last signed-in user email in this case and go though
     // the entire sign-in flow as sync needs to be configured.
     emailToReauthenticate = browserState_->GetPrefs()->GetString(
         prefs::kGoogleServicesLastUsername);
     idToReauthenticate = browserState_->GetPrefs()->GetString(
         prefs::kGoogleServicesLastAccountId);
   }
   DCHECK(!emailToReauthenticate.empty());
   DCHECK(!idToReauthenticate.empty());
-  identityInteractionManager_ =
+  identityInteractionManager_.reset(
       ios::GetChromeBrowserProvider()
           ->GetChromeIdentityService()
-          ->NewChromeIdentityInteractionManager(browserState_, self);
+          ->CreateChromeIdentityInteractionManager(browserState_, self));
   base::WeakNSObject<SigninInteractionController> weakSelf(self);
   [identityInteractionManager_
       reauthenticateUserWithID:base::SysUTF8ToNSString(idToReauthenticate)
                          email:base::SysUTF8ToNSString(emailToReauthenticate)
                     completion:^(ChromeIdentity* identity, NSError* error) {
                       [weakSelf handleIdentityAdded:identity
                                               error:error
                                        shouldSignIn:YES
                                      viewController:viewController];
                     }];
 }
 
 - (void)addAccountWithCompletion:(CompletionCallback)completion
                   viewController:(UIViewController*)viewController {
   completionCallback_.reset(completion, base::scoped_policy::RETAIN);
-  identityInteractionManager_ =
+  identityInteractionManager_.reset(
       ios::GetChromeBrowserProvider()
           ->GetChromeIdentityService()
-          ->NewChromeIdentityInteractionManager(browserState_, self);
+          ->CreateChromeIdentityInteractionManager(browserState_, self));
   base::WeakNSObject<SigninInteractionController> weakSelf(self);
   [identityInteractionManager_
       addAccountWithCompletion:^(ChromeIdentity* identity, NSError* error) {
         [weakSelf handleIdentityAdded:identity
                                 error:error
                          shouldSignIn:NO
                        viewController:viewController];
       }];
 }
 
@@ skipping 192 matching lines @@
     completionCallback_.get()(success);
     completionCallback_.reset();
   }
   strongSelf.reset();
   if (command) {
     [presentingViewController chromeExecuteCommand:command];
   }
 }
 
 @end